Tutorial.pdf
Tutorial.pdf
Tutorial.pdf
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Lesson 6: Optimizations – System margin<br />
OptiSys_Design can optimize parameters in order to maximize, minimize or to find the target<br />
value for results.<br />
This means you can optimize the fiber length of the EDFA to obtain the maximum gain, calculate<br />
the attenuation/gain to obtain a target Q-Factor, minimize the BER by optimizing the fiber length<br />
of the link, etc.<br />
The sample file “System Margin.osd” shows how to estimate the System margin; this margin<br />
shows the amount of power penalty that may be added to the system. The target BER is 10 -9 , that<br />
means a target Q-Factor of 6.<br />
Figure 74 -System Margin.osd<br />
In this example the subsystem “System under test” is an empty system. The optimization will<br />
optimize for the parameter attenuation from the Attenuator component to obtain the target<br />
value of the min Q-Factor from the BER Analyzer result. The parameter attenuation will be<br />
the system margin in dB.<br />
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